|
|
Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil
Detailed Mineral List:
| Albite |  | |
|---|---|---|
| Formula: | NaAlSi3O8 | |
| Reference: | [MinRec 11:370; Rocks & Min.:63:49 & 53. | |
| Photo: © Steve Hardinger. Albite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Albite var: Andesine | ||
| Formula: | (Na,Ca)[Al(Si,Al)Si2O8] | |
| Description: | In schist wall rocks | |
| Reference: | Cassedanne et al., 1980 : in the amphibolites | |
| Albite var: Cleavelandite |  | |
| Reference: | [MinRec 11:370] | |
| Photo: Cleavelandite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Albite var: Oligoclase | ||
| Formula: | (Na,Ca)[Al(Si,Al)Si2O8] | |
| Description: | In schist wall rocks | |
| Reference: | Cassedanne et al., 1980 : in the amphibolites | |
| 'Amblygonite-Montebrasite Series' | ||
| Reference: | Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 + 370. | |
| Amphibole Supergroup | ||
| Formula: | AX2Z5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 | |
| Reference: | Cassedanne et al., 1980 | |
| Beryl |  | |
| Formula: | Be3Al2(Si6O18) | |
| Reference: | [MinRec 11:370] | |
| Photo: © YCL. Beryl from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| 'Biotite' | ||
| Reference: | Cassedanne et al., 1980 | |
| Calcite | ||
| Formula: | CaCO3 | |
| Reference: | Cassedanne et al., 1980 | |
| Cassiterite | ||
| Formula: | SnO2 | |
| Reference: | [MinRec 11:370; Rocks & Min.:63:49 & 53. | |
| 'Chlorite Group' | ||
| Reference: | Cassedanne et al., 1980 | |
| ' | ||
| Reference: | Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 +370 | |
| 'Columbite-Tantalite' | ||
| Reference: | [MinRec 11:370] | |
| Cookeite | ||
| Formula: | LiAl4(AlSi3O10)(OH)8 | |
| Elbaite |  | |
| Formula: | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) | |
| Reference: | [www.johnbetts-fineminerals.com]/ Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and presnet. Mineralogical Record 11: 363-367 +370; Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143; Skogby, H., Bosi, F. and Lazor, P. (2012): Short-range order in tourmaline: a vibrational spectroscopic approach to elbaite. Phys. Chem. Minerals 39, 811-816. [F-rich elbaite: OH0.6F0.4] | |
| Photo: © Rob Lavinsky. Elbaite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Fluor-elbaite (TL) |  | |
| Formula: | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F | |
| Type Locality: | Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | |
| Reference: | Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143; Bosi, F., Andreozzi, G.B., Skogby, H., Lussier, A., Ball, N.A. and Hawthorne, F.C. (2011) Fluor-elbaite, IMA 2011-071. CNMNC Newsletter No. 11, December 2011, page 2891; Mineralogical Magazine, 75, 2887-2893. | |
| Photo: Fluor-elbaite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Foitite | ||
| Formula: | (□,Na)(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3OH | |
| Reference: | CanMin 38: 1399-1408 (2000); Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143. | |
| 'Garnet' | ||
| Formula: | X3Z2(SiO4)3 | |
| Reference: | [MinRec 11:370] | |
| 'Hornblende' | ||
| Reference: | Cassedanne et al., 1980 | |
| 'K Feldspar' | ||
| Localities: | Cruzeiro No. 1 pegmatite, Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil Cruzeiro No. 2 pegmatite, Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | |
| Lepidolite | ||
| Reference: | CanMin 38: 1399-1408 (2000) | |
| Montmorillonite | ||
| Formula: | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O | |
| Reference: | [MinRec 11:370] | |
| Muscovite | ||
| Formula: | KAl2(AlSi3O10)(OH)2 | |
| Localities: | Cruzeiro No. 1 pegmatite, Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil Cruzeiro No. 2 pegmatite, Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | |
| 'Olivine' | ||
| Formula: | (Mg,Fe2+)2SiO4 | |
| Reference: | Cassedanne et al., 1980 | |
| Petalite | ||
| Formula: | LiAl(Si4O10) | |
| Reference: | CanMin 38: 1399-1408 (2000) | |
| Phosphuranylite | ||
| Formula: | (H3O)3KCa(UO2)7(PO4)4O4 · 8H2O | |
| Reference: | [MinRec 11:370] | |
| 'Planerite-Turquoise Series' | ||
| Description: | Originally reported to be coeruleolactite. All purported coeruleolactite examined by the authors of the 1998 report (Foord, E.E. & Taggart, J.E.) were largely Planerite, or Occasionally turquoise. Published analysis indicates that the vacany in the 'A' site is between 0.51-0.54 atom fraction, the balance in Cu-0.40 and Zn-0.06 to 0.09. It is suggested by this analysis that the turquoise structure likely cannot accomodate Ca in the 'A' site. | |
| Reference: | Foord, E.E. & Taggart, J.E. (1998): A reexamination of the turquoise group; the mineral aheylite, planerite (redefined), turquoise and coeruleolactite. Mineralogical Magazine, 62, 93-111. | |
| Pyrope |  | |
| Formula: | Mg3Al2(SiO4)3 | |
| Reference: | Rruff project, under pyrope | |
| Photo: © . Pyrope from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| 'Pyroxene Group' | ||
| Reference: | Cassedanne et al., 1980 | |
| Quartz |  | |
| Formula: | SiO2 | |
| Reference: | [MinRec 11:370; Rocks & Min.:63:49 & 53. | |
| Photo: © Rob Lavinsky. Quartz from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Quartz var: Smoky Quartz |  | |
| Formula: | SiO2 | |
| Reference: | [MinRec 11:370] | |
| Photo: © 2009 ROM. Smoky Quartz from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| Schorl |  | |
| Formula: | Na(Fe2+3)Al6(Si6O18)(BO3)3(OH)3(OH) | |
| Reference: | CanMin 38: 1399-1408 (2000); Dutrow, B. and Henry, D. J. (2000) Complexly zoned fibrous tourmaline: A record of evolving magmatic and hydrothermal fluids. Canadian Mineralogist, 38, 131-143. | |
| Photo: © Lavinsky. Schorl from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
| 'Serpentine Group' | ||
| Formula: | D2[Si2O5](OH)4 + or - nH2O | |
| Reference: | Cassedanne et al., 1980 | |
| Spodumene | ||
| Formula: | LiAlSi2O6 | |
| Reference: | [MinRec 11:370] | |
| Torbernite | ||
| Formula: | Cu(UO2)2(PO4)2 · 12H2O | |
| Reference: | [MinRec 11:370] | |
| 'Tourmaline var: Rubellite' |  | |
| Photo: © Rob Lavinsky. Rubellite from Cruzeiro mine, São José da Safira, Doce valley, Minas Gerais, Brazil | ||
36 entries listed. 19 valid minerals. 1 type locality (valid mineral). 1 erroneous literature entry.
References
- Rocks & Min.: 63:49 & 53.
- Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 + 370.
- Cassedanne, J.P & J.O. (1980): Famous mineral localities: The Cruzeiro mine, past and present. Mineralogical Record 11: 363-367 + 370.
This page is currently not sponsored. To sponsor this page click here.